CN217867700U

CN217867700U - Hoisting structure

Info

Publication number: CN217867700U
Application number: CN202221551328.9U
Authority: CN
Inventors: 胡琨; 刘波; 丁波
Original assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Current assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-11-22
Anticipated expiration: 2032-06-20

Abstract

The utility model relates to a lifting means technical field discloses a lift by crane structure for hang the rotor disc that has the pivot, it includes: the lifting device comprises a base plate, a lifting assembly and a hoisting assembly, wherein the lifting assembly is used for keeping the base plate in a horizontal state and drawing the base plate to move up and down, and the hoisting assembly is detachably and fixedly connected with the lower end face of the base plate and is used for hoisting the rotor disc of the gas turbine; the central area of the base plate is provided with a first through hole which penetrates through the base plate and is used for the rotating shaft to penetrate through. The lifting height of the crane of the factory building to the lifting wheel disc can be effectively reduced.

Description

Hoisting structure

Technical Field

The utility model relates to a lift by crane equipment technical field especially relates to a structure of lifting by crane.

Background

At present, need will install when large-scale combustion engine rotor overhauls and dismantle one by one at the epaxial rim plate of commentaries on classics, just dismantle the epaxial rim plate of commentaries on classics one by one after putting rotor vertical, because the length of pivot is longer, generally pass through the hanging scaffold and the lifting hook after being connected through the lifting rope, can dismantle the hanging scaffold and the rim plate again and be connected, along with the removal of lifting hook, the hanging scaffold hangs the rim plate from the pivot, because the pivot need pass the hanging scaffold, the hanging scaffold just can hoist the rim plate, so the length of lifting rope will be greater than the length sum of all rim plates on the rotor at least and just can guarantee that the hanging scaffold can hoist all rim plates, and can not cause the collision of pivot and lifting hook. The lifting wheel disc can be limited in lifting height when the wheel disc is lifted by adopting the matching of the lifting rope and the lifting platform, and the wheel disc with a shorter rotating shaft can be lifted by the workshop crane even if the lifting height is very high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the hoisting structure without the hoisting rope can greatly reduce the hoisting height of the hoisting wheel disc of the factory building during travelling.

In order to achieve the above object, the utility model provides a lift by crane structure for hang the rotor disc that has the pivot, include: the lifting device comprises a base plate, a lifting assembly and a hoisting assembly, wherein the lifting assembly is used for keeping the base plate in a horizontal state and drawing the base plate to move up and down, and the hoisting assembly is detachably and fixedly connected with the lower end face of the base plate and is used for hoisting the rotor wheel disc; the central area of the base plate is provided with a first through hole which penetrates through the base plate and is used for the rotating shaft to pass through.

The embodiment of the utility model provides a lift by crane structure compares with prior art, and its beneficial effect lies in: through setting up the base plate to fixed connection lifting unit and base plate under the terminal surface can dismantle and connect hoisting assembly on the base plate, when the hoist and mount rim plate, hoisting assembly and first through-hole can be passed in the pivot of rotor, can save the use of lifting rope, can greatly reduced factory building driving to the required height of lifting by crane of rim plate.

Further, a cylinder body sleeved on the rotating shaft is arranged above the first through hole; the cylinder body extends in the vertical direction, and the outer side wall of the lower portion of the cylinder body is fixedly connected with the inner side wall of the first through hole. The cylinder can effectively limit the substrate to move only along the extension direction of the rotating shaft and cannot rotate relative to the rotating shaft, so that the stability of the substrate can be ensured.

Further, the lifting assembly comprises: the first pulley assembly is hung on the upper end face of the base plate, and the second pulley assembly is hung on the upper end face of the base plate; the first pulley assembly and the second pulley assembly are arranged at intervals in the horizontal direction. Specifically, the first pulley assembly and the second pulley assembly are respectively located on two sides of the first through hole. The two pulley assemblies are connected with the base plate, so that the pulling force of the cable can be shared, and the hoisting weight can be increased. Two pulley assemblies are located two of the first through holes, so that stress distribution is reasonable, the rotating shaft can smoothly pass through the first through holes, and collision with the pulley assemblies is avoided.

Further, the first sheave assembly includes: the device comprises a first pin shaft, a first plate body, a second plate body, a first pulley and a second pulley, wherein the first pin shaft is horizontally arranged, the first plate body is vertically arranged, and the second plate body is vertically arranged and parallel to the first plate body; the first plate body and the second plate body are arranged at intervals, and the first plate body and the second plate body are fixedly connected with the substrate; one end of the first pin shaft is fixed on the first plate body, and the other end of the first pin shaft is fixed on the second plate body; the first pulley and the second pulley are respectively sleeved on the first pin shaft. Through fixing first plate body and second plate body interval on the base plate, and the both ends of primary shaft round pin are fixed respectively and are formed "n" shape on first plate body and second plate body, and first pulley and second pulley rotate with primary shaft round pin and are connected, and its simple structure operation is reliable.

Further, the second sheave assembly includes: the second hinge pin is horizontally arranged, the third plate body is vertically arranged, and the fourth plate body, the third pulley and the fourth pulley are vertically arranged and parallel to the third plate body; the third plate body and the fourth plate body are arranged at intervals, and the third plate body and the fourth plate body are fixedly connected with the substrate; one end of the second pin shaft is fixed on the third plate body, and the other end of the second pin shaft is fixed on the fourth plate body; the third pulley and the fourth pulley are respectively sleeved on the second pin shaft. Through fixing third plate body and fourth plate body interval on the base plate, and the both ends of second axle round pin are fixed respectively and are formed "n" shape on third plate body and fourth plate body, and third pulley and fourth pulley rotate with the second axle round pin and are connected, and its simple structure operation is reliable.

Specifically, the first pulley assembly and the second pulley assembly have the same structure and size. The same structure can simplify the parts, and meanwhile, the stress is uniform, and the maintenance and the replacement are convenient.

Further, the diameter of the first pulley is larger than that of the second pulley, and the diameter of the third pulley is larger than that of the fourth pulley.

Further, hoist and mount subassembly includes: the device comprises a plurality of connecting rods, a hanging scaffold and a hook body, wherein the hook body is arranged on the hanging scaffold and used for hooking the rotor wheel disc; the two ends of each connecting rod are respectively a first connecting end and a second connecting end; each first connecting end is connected to the substrate, and each second connecting end is connected to the hanging scaffold; the first connecting ends are sequentially arranged at intervals along the edge of the first through hole; and a second through hole for the rotating shaft to pass through is formed in the hanging scaffold. The connecting rods can enable the stress of the hanging scaffold to be distributed uniformly, the hanging scaffold is guaranteed to be in a horizontal state, the hung wheel disc is guaranteed to be in a horizontal state, and the collision phenomenon of the wheel disc is reduced.

Furthermore, a plurality of first hanging rings are arranged on the lower end face of the base plate; a plurality of second hoisting rings are arranged on the hoisting platform; each first connecting end and each second connecting end are respectively provided with a hook; the first connecting ends are hung on the first hanging rings in a one-to-one correspondence mode respectively, and the second connecting ends are hung on the second hanging rings in a one-to-one correspondence mode respectively. The hanging device comprises a plurality of first hanging rings, a plurality of second hanging rings, a plurality of hooks connected with the first connecting ends and a plurality of hooks connected with the second connecting ends in a one-to-one correspondence mode. The hoisting component can be conveniently detached and installed by adopting the connection mode that the hoisting ring and the hook are mutually matched.

Furthermore, a plurality of first hanging rings are distributed around the circumference of the first through hole; and the second hanging rings are circumferentially distributed along the circumferential direction of the second through hole. Specifically, the first hanging rings and the second hanging rings which are distributed in a surrounding mode correspond to each other one by one, and after the connecting rod is hung, the hook can be in a vertical state, so that the connecting rod is reasonable in stress.

Furthermore, a plurality of first bolt holes are fixedly formed in the lower end face of the base plate, and the first bolt holes are distributed in a surrounding manner along the radial direction of the first through hole; and each first hanging ring is fixedly connected with a rod piece with external threads, and each rod piece is correspondingly matched with one first bolt hole in a threaded manner. The rod piece of the first hanging ring is connected with the threaded hole in a threaded mode through the first bolt hole, and installation and disassembly are facilitated.

Further, still include the auxiliary hook subassembly, and the auxiliary hook subassembly includes: the lifting hook is hinged with the third connecting plate; specifically, first connecting plate is equipped with a plurality of second bolt holes, a plurality of second bolt holes and a plurality of first bolt hole one-to-one, and the second bolt hole and the first bolt hole of one-to-one pass through bolt fastening. It should be noted that the secondary hook assembly cannot be used simultaneously with the lifting assembly.

Drawings

FIG. 1 is a front view of a hoisting structure according to an embodiment of the present invention;

FIG. 2 is a sectional view of a hoisting structure in an embodiment of the present invention;

FIG. 3 is a schematic structural view of a hoisting assembly according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating a lifting state of the platform crane according to the embodiment of the present invention;

in the figure, 1, a substrate; 11. a first through hole; 12. a first bolt hole; 2. a first sheave assembly; 21. a first pin shaft; 22 a first plate body; 23. a second plate body; 24. a first pulley; 25. a second pulley; 3. a second sheave assembly; 31. a second pin shaft; 32 a third plate body; 33. a fourth plate body; 34. a third pulley; 35. a fourth pulley; 4. hoisting the assembly; 41. a connecting rod; 42. a first connection end; 43. a second connection end; 44. a hanging scaffold; 45. a hook body; 5. a barrel; 6. a first hanging ring; 7. a second hoisting ring; 8. a rotating shaft; 9. a wheel disc; 10. a secondary hook assembly; 101. a first connecting plate; 102. a second connecting plate; 103. a third connecting plate; 104. a hook; 105. a second bolt hole.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 to 4, a hoisting structure according to a preferred embodiment of the present invention is a hoisting structure for hoisting a rotor disk 9 having a rotating shaft, including: the lifting device comprises a base plate 1, a lifting assembly and a hoisting assembly 4, wherein the lifting assembly is used for keeping the base plate 1 in a horizontal state and drawing the base plate 1 to move up and down, and the hoisting assembly 4 is detachably and fixedly connected with the lower end face of the base plate 1 and is used for hanging a rotor disc 9 of a combustion engine; the central region of the substrate 1 is opened with a first through hole 11 penetrating the substrate 1 and allowing the rotation shaft to pass through.

The embodiment of the utility model provides a lift by crane structure compares with prior art, and its beneficial effect lies in: through setting up base plate 1 to fixed connection lifting unit and base plate 1 lower terminal surface can dismantle and connect hoisting unit 4 on base plate 1, when hoist and mount rim plate 9, hoisting unit 4 and first through-hole 11 can be passed in the pivot 8 of rotor, can save the use of lifting rope, can improve the lifting height of factory building driving when lifting by crane the rim plate greatly.

In one embodiment, a cylinder 5 for sleeving the rotating shaft 8 is arranged above the first through hole 11; the cylinder 5 extends in the vertical direction, and the outer side wall of the lower part of the cylinder 5 is fixedly connected with the inner side wall of the first through hole 11. The cylinder 5 can effectively limit the substrate 1 to move only along the extension direction of the rotating shaft 8 but not to rotate relative to the rotating shaft 8, so that the stability of the substrate 1 can be ensured.

In one embodiment, the lift assembly comprises: a first pulley assembly 2 hung on the upper end surface of the base plate 1 and a second pulley assembly 3 hung on the upper end surface of the base plate 1; the first pulley assembly 2 and the second pulley assembly 3 are arranged at intervals in the horizontal direction. Specifically, the first pulley assembly 2 and the second pulley assembly 3 are respectively located at two sides of the first through hole 11. The two pulley assemblies are connected with the base plate 1, so that the pulling force of the cable can be shared, and the hoisting weight can be increased. Two pulley assembly are located two of first through-hole 11 and make the atress distribute rationally, and enable the pivot and pass first through-hole 11 smoothly, can not bump with pulley assembly.

In one embodiment, the first sheave assembly 2 includes: the device comprises a first pin shaft 21 arranged horizontally, a first plate body 22 arranged vertically, a second plate body 23 arranged vertically and parallel to the first plate body 22, a first pulley 24 and a second pulley 25; the first plate body 22 and the second plate body 23 are arranged at intervals, and the first plate body 22 and the second plate body 23 are fixedly connected with the substrate 1; one end of the first pin 21 is fixed on the first plate 22, and the other end of the first pin 21 is fixed on the second plate 23; the first pulley 24 and the second pulley 25 are respectively sleeved on the first pin shaft 21. Through fixing first plate 22 and second plate 23 on base plate 1 at interval, and the both ends of first pivot 21 are fixed respectively and are formed "n" shape on first plate 22 and second plate 23, first pulley 24 and second pulley 25 rotate with first pivot 21 and are connected, its simple structure operation is reliable.

In one embodiment, the second sheave assembly 3 includes: a second pin 31 arranged horizontally, a third plate 32 arranged vertically, a fourth plate 33 arranged vertically and parallel to the third plate 32, a third pulley 34, and a fourth pulley 35; the third plate body 32 and the fourth plate body 33 are arranged at intervals, and the third plate body 32 and the fourth plate body 33 are fixedly connected with the substrate 1; one end of the second pin 31 is fixed on the third plate 32, and the other end of the second pin 31 is fixed on the fourth plate 33; the third pulley 34 and the fourth pulley 35 are respectively sleeved on the second pin 31. Through fixing the third plate 32 and the fourth plate 33 on the substrate 1 at intervals, and fixing the two ends of the second shaft pin 31 on the third plate 32 and the fourth plate 33 respectively to form an "n" shape, the third pulley 34 and the fourth pulley 35 are rotatably connected with the second shaft pin 31, and the structure is simple and the operation is reliable.

Specifically, the first sheave assembly 2 and the second sheave assembly 3 are identical in structure and size. The same structure can simplify the parts, and meanwhile, the stress is uniform, and the maintenance and the replacement are convenient.

In one embodiment, the diameter of the first pulley 24 is greater than the diameter of the second pulley 25, and the diameter of the third pulley 34 is greater than the diameter of the fourth pulley 35.

In one embodiment, the hoist assembly comprises: a plurality of links 41, a platform 44, and a hook 45 provided on the platform 44 for hooking the rotor disc; the two ends of each connecting rod 41 are respectively a first connecting end 42 and a second connecting end 43; each first connection end 42 is connected to the substrate 1, and each second connection end 43 is connected to the hanging scaffold 44; the plurality of first connection ends 42 are sequentially arranged at intervals along the edge of the first through hole 11; the hanging scaffold 44 is provided with a second through hole for the rotating shaft 8 to pass through. The plurality of connecting rods 41 can enable the stress of the hanging scaffold 44 to be uniformly distributed, ensure that the hanging scaffold 44 is in a horizontal state, ensure that the lifted wheel disc 9 can also be in a horizontal state, and reduce the collision phenomenon of the wheel disc 9.

In one embodiment, the lower end face of the base plate 1 is provided with a plurality of first hanging rings 6; the hanging scaffold 44 is provided with a plurality of second hanging rings 7; each first connection end 42 and each second connection end 43 are hooks; the first connecting ends 42 are respectively hung on the first hanging rings 6 in a one-to-one correspondence manner, and the second connecting ends 43 are respectively hung on the second hanging rings 7 in a one-to-one correspondence manner. The first hanging rings 6, the second hanging rings 7, the hooks of the first connecting ends 42 and the hooks of the second connecting ends 43 correspond to one another. The hoisting component can be conveniently detached and installed by adopting the connection mode that the hoisting ring and the hook are mutually matched.

In one embodiment, a plurality of first hanging rings 6 are distributed around the circumference of the first through hole 11; the second hanging rings 7 are circumferentially distributed along the circumferential direction of the second through hole. Specifically, the first lifting rings 6 and the second lifting rings 7 distributed in a surrounding mode correspond to each other one by one, and after the connecting rod 41 is hung on the connecting rod 41, the connecting rod 41 can be in a vertical state, so that the connecting rod is reasonable in stress.

In one embodiment, a plurality of first bolt holes 12 are fixedly arranged on the lower end surface of the base plate 1, and the plurality of first bolt holes 12 are distributed around the radial direction of the first through hole 11; each first hanging ring 6 is fixedly connected with a rod piece with external threads, and each rod piece is correspondingly matched with one first bolt hole 12 in a threaded mode. The first bolt hole 12 is arranged to connect the rod piece of the first hanging ring 6 with the threaded hole in a threaded manner, so that the first hanging ring is convenient to mount and dismount.

In one embodiment, a secondary hook assembly 10 is also included, and the secondary hook assembly 10 includes: a first connecting plate 101 detachably connected with the lower end face of the base plate 1, a second connecting plate 102 fixedly connected with the first connecting plate 101, a third connecting plate 103 hinged with the second connecting plate 102, and a hook 104 hinged with the third connecting plate 103; specifically, the first connecting plate 101 is provided with a plurality of second bolt holes 105, the plurality of second bolt holes 105 correspond to the plurality of first bolt holes 12 one to one, and the one-to-one corresponding second bolt holes 105 and first bolt holes 12 are fixed by bolts. It should be noted that the secondary hook assembly 10 cannot be used simultaneously with the lifting assembly.

To sum up, the embodiment of the utility model provides a lift by crane the structure, it is through setting up base plate 1, and at 1 up end fixed connection first loose pulley assembly 2 of base plate and second loose pulley assembly 3, the terminal surface can be dismantled under base plate 1 and connect hoist assembly, when the hoist and mount rim plate, hoist assembly and first through-hole 11 can be passed in the pivot of rotor, and first loose pulley assembly 2 and second loose pulley assembly 3 are located the both sides of first through-hole 11, can avoid bumping with the pivot, can hang the carousel out smoothly, the use of lifting rope has been saved, can greatly reduced factory building driving to the required height of lifting by crane of rim plate.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a hoisting structure for hang rotor disc that has a pivot, its characterized in that includes: the lifting component is detachably and fixedly connected with the lower end face of the base plate and used for hanging the rotor wheel disc; the central area of the base plate is provided with a first through hole which penetrates through the base plate and is used for the rotating shaft to pass through.

2. The hoisting structure according to claim 1, wherein a cylinder body for sleeving the rotating shaft is arranged above the first through hole; the cylinder body extends in the vertical direction, and the outer side wall of the lower portion of the cylinder body is fixedly connected with the inner side wall of the first through hole.

3. The hoisting structure of claim 1, wherein the lifting assembly comprises: the first pulley assembly is hung on the upper end face of the base plate, and the second pulley assembly is hung on the upper end face of the base plate; the first pulley assembly and the second pulley assembly are arranged at intervals in the horizontal direction.

4. A hoisting structure according to claim 3, wherein the first sheave assembly comprises: the device comprises a first pin shaft, a first plate body, a second plate body, a first pulley and a second pulley, wherein the first pin shaft is horizontally arranged, the first plate body is vertically arranged, and the second plate body is vertically arranged and parallel to the first plate body; the first plate body and the second plate body are arranged at intervals, and the first plate body and the second plate body are fixedly connected with the substrate; one end of the first pin shaft is fixed on the first plate body, and the other end of the first pin shaft is fixed on the second plate body; the first pulley and the second pulley are respectively sleeved on the first pin shaft.

5. The hoisting structure of claim 4, wherein the second sheave assembly comprises: the second hinge pin is horizontally arranged, the third plate body is vertically arranged, and the fourth plate body, the third pulley and the fourth pulley are vertically arranged and parallel to the third plate body; the third plate body and the fourth plate body are arranged at intervals, and the third plate body and the fourth plate body are fixedly connected with the substrate; one end of the second pin shaft is fixed on the third plate body, and the other end of the second pin shaft is fixed on the fourth plate body; the third pulley and the fourth pulley are respectively sleeved on the second pin shaft.

6. A hoisting structure as claimed in claim 5, wherein the diameter of the first sheave is greater than the diameter of the second sheave and the diameter of the third sheave is greater than the diameter of the fourth sheave.

7. The hoisting structure of claim 1, wherein the hoist assembly comprises: the connecting rods, the hanging scaffold and a hook body are arranged on the hanging scaffold and used for hooking the rotor wheel disc; the two ends of each connecting rod are respectively a first connecting end and a second connecting end; each first connecting end is connected to the base plate, and each second connecting end is connected to the hanging scaffold; the plurality of first connecting ends are sequentially arranged at intervals along the edge of the first through hole; and a second through hole for the rotating shaft to pass through is formed in the hanging scaffold.

8. The hoisting structure according to claim 7, wherein a plurality of first hoisting rings are arranged on the lower end surface of the base plate; a plurality of second hoisting rings are arranged on the hoisting platform; each first connecting end and each second connecting end are respectively provided with a hook; the first connecting ends are hung on the first hanging rings in a one-to-one correspondence mode respectively, and the second connecting ends are hung on the second hanging rings in a one-to-one correspondence mode respectively.

9. The hoisting structure according to claim 8, wherein a plurality of the first hoisting rings are circumferentially distributed along a circumference of the first through hole; and the second hanging rings are circumferentially distributed along the circumferential direction of the second through hole.

10. The hoisting structure according to claim 9, wherein a plurality of first bolt holes are fixedly arranged on the lower end surface of the base plate, and are circumferentially distributed along the circumferential direction of the first through hole; and each first hanging ring is fixedly connected with a rod piece with external threads, and each rod piece is correspondingly matched with one first bolt hole in a threaded manner.